Saturday, June23, 2018 L-36.com


Marine Weather and Tides
Hull, MA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:06AMSunset 8:26PM Saturday June 23, 2018 11:11 PM EDT (03:11 UTC) Moonrise 4:06PMMoonset 2:27AM Illumination 82% Phase: Waxing Gibbous; Moon at 11 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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ANZ230 Boston Harbor- 1032 Pm Edt Sat Jun 23 2018
Overnight..N winds around 5 kt. Waves 1 foot or less. Areas of drizzle with possible showers and tstms. Patchy fog. Vsby 1 nm or less.
Sun..W winds around 5 kt, becoming se around 5 kt in the afternoon. Waves 1 foot or less. A chance of showers.
Sun night..S winds around 5 kt, becoming nw after midnight. Waves 1 foot or less. A chance of showers.
Mon..N winds 5 to 10 kt. Waves around 2 ft. A chance of showers and tstms.
Mon night..NE winds 5 to 10 kt, becoming nw after midnight. Waves 1 foot or less.
Tue..NW winds around 5 kt, becoming sw in the afternoon. Waves 1 foot or less.
Tue night..SW winds around 5 kt. Waves 1 foot or less.
Wed..SW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft.
Wed night..SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers.
Thu..SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Showers likely.
Thu night..SW winds 10 to 15 kt. Waves around 2 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
ANZ200 1032 Pm Edt Sat Jun 23 2018
Synopsis for massachusetts and rhode island coastal waters.. Showers and a few Thunderstorms will linger into Sunday as a cold front slowly crosses southern new england. The front will move offshore Mon. High pres builds into the region Tue through Thu. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the current hazards link above the map on the left.

7 Day Forecast for Marine Location Near Hull, MA
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location: 42.32, -70.92     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 240307
afdbox
area forecast discussion
national weather service boston norton ma
1107 pm edt Sat jun 23 2018

Synopsis
A warm front will slowly shift north, bringing showers and
possibly a few thunderstorms overnight. Low pressure from the
great lakes moves across new england Sunday and will bring
showers and a few thunderstorms, especially during the
afternoon and evening. Scattered showers and thunderstorms
are possible Monday. Sunny and seasonable weather Tuesday into
Wednesday with high pressure in control. After some showers and
thunderstorms Wednesday night and Thursday, summer heat and
humidity will return Friday and Saturday as this high moves east
of the region.

Near term until 6 am Sunday morning
1030 pm update...

areas of low clouds, drizzle and fog continue across most of the
region. Spotty showers are crossing the region, moving e-ne,
along with a couple of bands of showers scattered thunderstorms
moving toward the S coast as seen on latest NE regional 88d
radar imagery. Areas of dense fog lie across portions of the
coastal waters as well as CAPE cod, along with spotty dense fog
across the worcester hills.

May see scattered showers and an isolated thunderstorm or two
cross S coastal areas over the next few hours. Will see variable
conditions as it appears some patchy dry spots are also moving
across the region, with briefly improving conditions. While the
showers are spotty, will likely see areas of drizzle will
continue especially across the coastal plain with dewpoints in
the upper 50s to mid 60s, not far from the air temps.

Have updated to bring near term conditions current and
incorporated trends into the overnight forecast.

Short term 6 am Sunday morning through Sunday night
Another shortwave moves through the flow Sunday and Sunday
night. The shortwave will generate a wave on the warm front,
which then draws the warm front back to the south as a cold
front later in the day and early night. The upper temp field
features a small amount of cold advection, which will cause some
destabilization. The wind and divergence fields are enough to
generate adequate lift Sunday afternoon and early night.

With the high pw values, a few heavy downpours are possible. The
spc href ensemble shows a 70-90 percent chance CAPE reaching
1000 joules kg in western ct and western ma Sunday late
aftn evening. We will mention a chance of strong gusts and
locally heavy downpours.

We will forecast showers and scattered thunder, with the
favored time from midday through evening. Temps in the mixed
layer reach an equiv of 10-12c, so with appreciable heating we
should reach the 70s with the interior in the upper 70s low 80s.

Dew points will be in the 60s, so expect a warm muggy day. Min
temps Sunday night will be near the dew points, in the 60s.

Long term Monday through Saturday
Highlights...

* seasonable temperatures through thurs.With chance of showers
Monday and wed. Night thurs.

* prolonged heat wave may begin next weekend...

Monday...

a vigorous shortwave and cold pool aloft dives southward and
into northern ma on Monday. 500 mb temperatures drop to -22c
which leads to total totals indices on the order of 50-53 Monday
afternoon. Winds are forecast to be from the northeast in
eastern ma and ri but from the northwest in western ma and
northern ct, leading to some low level convergence. Despite
temperatures only reaching the low to mid 70s, the cold air
aloft will lead to enough instability to create a chance of
showers and thunderstorms during the afternoon and early evening
hours. The best chances will be in central and eastern ma.

Tuesday...

sunny and pleasant with surface high pressure centered just south
of the region. Low humidity, with dewpoints in the mid and upper
40s. Clear tue. Night with pleasant sleeping conditions with
lows in the 50s.

Wednesday...

wed. Will be a mainly sunny day but clouds will increase mainly in
western areas as the afternoon progresses. This is due to a
significant influx of moisture aloft spreading in from west to
east. K indices increase from single digits to near 30 by wed.

Evening. Highs mainly 80 to 85.

Wednesday night and Thursday...

a cold front moves into the region with increasing moisture and
precipitable waters approaching 1.7 to 2.0 inches. Showers and a
few thunderstorms are likely, with some potentially heavy
downpours. The front exits the region thu. Night, bringing an
end to the precipitation.

Friday and Saturday...

the upper level pattern changes significantly, with a closed
ridge of high pressure becoming centered just south of our
region... And strengthening through the weekend and into the
following week, for that matter. High pressure at the surface
slides off to our southeast. This will lead to mainly sunny
skies, but high heat and humidity. Have used wpc guidance
temperatures, which were on the upper end of guidance values,
for this time period. Forecasting upper 80s and lower 90s Friday
and lower to mid 90s on Saturday, with dewpoints rising to near
70 by Saturday. Heat advisories will likely be needed,
especially by Saturday.

Although the forecast does not go beyond Saturday, there are
signals that this could be the beginnings of a prolonged heat
wave, with the heat and humidity possibly lasting well into the
first week of july.

Aviation 03z Sunday through Thursday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Sunday night ... High confidence through midday,
then moderate confidence.

1030 pm update...

overnight...

mainly ifr-lifr CIGS with areas of drizzle and fog. Visibility
at or below 1 4 nm across S coastal areas N to coastal plymouth
county, as well as the worcester area. Kept scattered showers
and an isolated tsra or two mainly near and S of the mass pike.

Will see local vsby improvement just away from the S coast as
well as across the route 2 area through 05z or so, but should
lower again through daybreak.

Sunday...

ifr CIGS vsbys early, but improving toVFR during the morning.

Low conditions may continue through the morning on the islands,
but should improve toVFR around midday. Low pressure moves
across new england during the day, swinging a cold front through
the region during the afternoon evening. This will bring showers
and a few thunderstorms. Overall conditions should beVFR from
midday through evening, but with brief lowering to MVFR during
showers tstms.

Sunday night...

showers scattered tstms end early. Any low conditions will
improve toVFR overnight. Winds trend nnw overnight bringing
drier air.

Kbos terminal... High confidence in TAF trends. Moderate
confidence in timing.

Kbdl terminal... High confidence in TAF trends. Moderate
confidence in timing.

Outlook Monday through Thursday ... Moderate confidence.

Monday: mainlyVFR, with areas MVFR possible. Breezy. Slight
chance shra, slight chance tsra.

Monday night through Tuesday night:VFR.

Wednesday:VFR. Breezy.

Wednesday night: mainly MVFR, with areasVFR possible. Breezy.

Chance shra and tsra.

Thursday: mainly MVFR, with localVFR possible. Breezy. Chance
shra and tsra.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Sunday night ... High confidence.

1030 pm update...

overnight...

expect light N winds across the eastern waters which will shift
to SW toward daybreak, while remaining SW on the southern waters
overnight. Seas will remain close to 5 feet across the southern
outer waters. Scattered showers and a few thunderstorms will
pass across the southern waters to E of CAPE cod through around
06z-07z, then move off to the east. Areas of fog and drizzle
with visibilities generally 1 to 3 miles, except areas of
dense fog, with visibility at or below 1 4 mile, from CAPE cod
to the southern waters which may begin to improve around
daybreak.

Sunday...

winds shift out of the southwest during the day but remain
light. Seas will mostly be less than 5 feet, except for seas at
5 feet on the outer part of the southern outer waters. Much of
this is from a 5-6 foot swell south of our waters. Visibility 1
to 3 miles early in fog, improving by midday. Expect a chance
of showers and scattered thunderstorms, mostly during the
afternoon.

Sunday night...

winds less than 25 knots, and seas mostly less than 5 feet.

Some lingering 5 foot seas in the southern part of our southern
waters. A cold front will move south across the waters early in
the night, and may continue to generate showers and a chance of
a thunderstorm. This should move out to sea overnight.

Outlook Monday through Thursday ... Moderate confidence.

Monday: winds less than 25 kt. Areas of seas approaching 5 ft.

Slight chance of rain showers.

Monday night: winds less than 25 kt. Areas of seas approaching
5 ft.

Tuesday: winds less than 25 kt. Seas below 5 ft.

Tuesday night through Wednesday: winds less than 25 kt. Seas
locally approaching 5 ft.

Wednesday night: low risk for small craft advisory winds with
gusts up to 25 kt. Seas up to 5 ft. Slight chance of showers or
a thunderstorm.

Thursday: moderate risk for small craft advisory winds with
gusts up to 25 kt. Seas 5 to as much as 7 ft on the outer
waters. Chance of showers and a few thunderstorms.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... Small craft advisory from 2 am Sunday to 6 am edt Monday for
anz254>256.

Synopsis... Wtb gaf
near term... Evt
short term... Wtb
long term... Gaf
aviation... Evt gaf
marine... Wtb evt gaf


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BHBM3 - 8443970 - Boston, MA 7 mi41 min 59°F 1009.8 hPa
44013 - BOSTON 16 NM East of Boston, MA 14 mi81 min NNE 12 G 14 58°F 62°F2 ft1009.9 hPa (+0.0)58°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 23 mi67 min 56°F 59°F3 ft1008.9 hPa
44018 - SE Cape Cod 30NM East of Nantucket, MA 42 mi81 min N 3.9 G 5.8 59°F 3 ft1009.9 hPa (-0.0)59°F
FOXR1 - 8454000 - Providence, RI 44 mi41 min NE 6 G 8.9 61°F 67°F1010.1 hPa
PVDR1 44 mi41 min N 5.1 G 8 61°F 1010.7 hPa60°F
FRVM3 - 8447386 - Fall River, MA 44 mi41 min 61°F 68°F1010.7 hPa
FRXM3 45 mi41 min 60°F 59°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 45 mi41 min N 6 G 7 61°F 1010.2 hPa
44090 46 mi41 min 62°F1 ft
IOSN3 - Isle of Shoals, NH 47 mi71 min N 13 G 14 56°F 1010.4 hPa (-0.3)54°F
CPTR1 - 8452944 - Conimicut Light, RI 47 mi41 min N 8 G 9.9 60°F 70°F1010.3 hPa

Wind History for Providence, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boston, Logan International Airport, MA7 mi17 minN 77.00 miOvercast60°F57°F90%1010.5 hPa
East Milton, MA13 mi15 minNNE 5 mi56°F55°F100%1011.1 hPa
Norwood, Norwood Memorial Airport, MA16 mi18 minN 05.00 miFog/Mist61°F57°F90%1010.2 hPa
Beverly, Beverly Municipal Airport, MA18 mi18 minN 410.00 miOvercast57°F55°F96%1010 hPa
Marshfield Airport, MA20 mi16 minNNW 41.00 miFog/Mist59°F59°F100%1009.8 hPa
Bedford, Hanscom Field, MA22 mi15 minN 03.00 miLight Rain Fog/Mist57°F55°F96%1011.6 hPa

Wind History from BOS (wind in knots)
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Last 24hrSE4S3E3E4E4E3NE5NE7NE6E10NE7E12E12E12E8E10E11NE11NE11NE11NE8NE8N8N5
1 day agoN4N4N5N6N7N12N9N5N9N7E9E8E10E11E12--E13E13E13SE10SE8S12S10S7
2 days agoSW7SW6SW6SW7SW4SW5SW3W5W6W4W6NE7SE7E11E11E12E13E12E9E9SE7E4CalmNE4

Tide / Current Tables for Lovell Island, The Narrows, Boston Harbor, Massachusetts
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Lovell Island
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Sat -- 02:14 AM EDT     0.57 feet Low Tide
Sat -- 02:27 AM EDT     Moonset
Sat -- 05:07 AM EDT     Sunrise
Sat -- 08:30 AM EDT     8.88 feet High Tide
Sat -- 02:30 PM EDT     0.71 feet Low Tide
Sat -- 04:06 PM EDT     Moonrise
Sat -- 08:24 PM EDT     Sunset
Sat -- 08:55 PM EDT     9.73 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.61.50.60.91.93.65.87.78.88.87.96.44.32.20.90.81.83.45.67.89.39.79.27.8

Tide / Current Tables for Boston Harbor, Massachusetts Current
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Boston Harbor
Click for Map
Sat -- 02:02 AM EDT     0.00 knots Slack
Sat -- 02:27 AM EDT     Moonset
Sat -- 05:07 AM EDT     Sunrise
Sat -- 05:24 AM EDT     1.03 knots Max Flood
Sat -- 08:13 AM EDT     -0.00 knots Slack
Sat -- 12:20 PM EDT     -1.23 knots Max Ebb
Sat -- 02:23 PM EDT     0.00 knots Slack
Sat -- 04:06 PM EDT     Moonrise
Sat -- 05:49 PM EDT     1.11 knots Max Flood
Sat -- 08:24 PM EDT     Sunset
Sat -- 08:42 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.3-0.9-00.50.810.90.50.1-0.3-0.6-0.9-1.2-1.1-0.30.40.811.10.80.3-0.1-0.5-0.9

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Northeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boston, MA (23,6,7,8)
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Ground Weather Radar Station Boston, MA
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.